TCL Air Conditioner Service Manual
30
1.6.4 Connecting the pipes.
Do not remove the cap from the pipe until
connecting it, to avoid dampness or dirt from
entering.
If the pipe is bent or pulled too often, it will
become stiff. Do not bend the pipe more than
three times at one point.
When extending the rolled pipe, straighten the
pipe by unwinding it gently as shown in the
picture.
2.6.5 Connections to the indoor unit
1).Remove the indoor unit pipe cap (check that there
is no debris inside).
2).Insert the fare nut and create a flange at the
extreme end of the connection pipe.
3).Tighten the connections by using two wrenches
working in opposite directions.
Wrap the insulation material around the
connecting portion
.
Overlap the connection pipe insulation material
and the indoor unit pipe insulation material. Bind
them together with vinyl tape so that there is no
gap.
Wrap the area which accommodates the rear piping
housing section with vinyl tape.
Bundle the piping and drain hose together by
wrapping them with vinyl tape over the range
within which they fit into the rear piping housing
section.
2.6.6 Indoor unit condensed water drainage
The indoor unit condensed water drainage is
fundamental for the success of the installation.
1).Place the drain hose below the piping, taking
care
not to create siphons.
2).The drain hose must slant downwards to aid
drainage.
3).Do not bend the drain hose or leave it protruding
or twisted and do not put the end of it in water. If
an extension is connected to the drain hose,
ensure that it is lagged when it passes into the
indoor unit.
4).If the piping is installed to the right, the pipes,
power cable and drain hose must be lagged and
secured onto the rear of the unit with a pipe
connection.
When extending the drain hose at the indoor unit, install
Capacity
(Btu/h)
Pipe Size (Torque)
Gas
Liquid
7/9/12K
3/8" (4.2kg.m)
1/4" (1.8kg.m)
18K
1/2" (5.5kg.m)
1/4" (1.8kg.m)
24K
5/8" (6.6kg.m)
3/8" (4.2kg.m)
3
2
1
Shape the connection pipe
NO
YES
Extending the rolled pipe